Bessvatnet is a lake

Lake

A lake is a body of relatively still fresh or salt water of considerable size, localized in a basin, that is surrounded by land. Lakes are inland and not part of the ocean and therefore are distinct from lagoons, and are larger and deeper than ponds. Lakes can be contrasted with rivers or streams,...

 in Vågå

Vågå

Vågå is a municipality in Oppland county, Norway. It is part of the traditional region of Gudbrandsdal. The administrative centre of the municipality is the village of Vågåmo....

, Oppland

Oppland

is a county in Norway, bordering Sør-Trøndelag, Møre og Romsdal, Sogn og Fjordane, Buskerud, Akershus, Oslo and Hedmark. The county administration is in Lillehammer. Oppland is, together with Hedmark, one of the only two landlocked counties of Norway....

, Norway

Norway

Norway , officially the Kingdom of Norway, is a Nordic unitary constitutional monarchy whose territory comprises the western portion of the Scandinavian Peninsula, Jan Mayen, and the Arctic archipelago of Svalbard and Bouvet Island. Norway has a total area of and a population of about 4.9 million...

. Bessvatnet is known to everyone that has hiked Besseggen

Besseggen

Besseggen, or Besseggi, is a mountain ridge in Vågå kommune in Oppland county. Besseggen lies east in Jotunheimen, between the lakes Gjende and Bessvatnet....

, as one passes its southern end, while looking down on the green lake Gjende

Gjende

Gjende is a lake in the Jotunheimen mountains in Norway's Jotunheimen National Park. The proglacial lake shows typical characteristics of glacial formation, being long and narrow—in length 18 km and in breadth 1.5 km at the broadest point with steep walls...

.

The name

Bessvatnet ('Bess water') is named after the river Bessa, the last element is the finite form of vatn 'water, lake'. The name of the river is derived from Old Norse

Old Norse

Old Norse is a North Germanic language that was spoken by inhabitants of Scandinavia and inhabitants of their overseas settlements during the Viking Age, until about 1300....

 bersi m 'bear

Bear

Bears are mammals of the family Ursidae. Bears are classified as caniforms, or doglike carnivorans, with the pinnipeds being their closest living relatives. Although there are only eight living species of bear, they are widespread, appearing in a wide variety of habitats throughout the Northern...

' - thus 'Bear river'.